Best fits: Boston, Houston, Toronto, St. Louis, Arizona, San Diego, BaltimoreChance of trade: 50%Passan's early MLB trade deadline preview As trade season starts up, here are the biggest names who could move -- and the teams that could deal for them. Best fits: Chicago Cubs, Houston, Toronto, San Diego, Los Angeles Dodgers7. Best fits: Seattle, Boston, San Francisco, TexasChance of trade: 85%Updated top 50 MLB prospect rankings Starting with a new No. Best fits: Philadelphia, Seattle, Cleveland, San Diego, San Francisco27. Best fits: San Diego, Toronto, HoustonNos.